I just picked up a used excellent cond Hughes and Kettner 4x12 cab. It's a Marshal style, closed back, very well built birch ply cab. I am looking for a early 70's Humble Pie type sound. I have a JCM800 4010 fifty watt combo and a Marshall class 5 5 watt head. Looking for speakers that will work with both. I understand there's big power discrepancy but there must be something that will work. I was thinking about 4 green berets, but not sure about them handling the fifty watt combo's power, it can get LOUD. Any ideas?